I was wondering if any1 has a magna with some good extractors and if so,
how much more power-efficiency would you get out of it.I've been thinking
of getting some but not sure what to get,thow genie's would be a good1 to go for.considering i already have the hi-flow muffler it pretty much ready 4 it.Any opinions would be much appreciated. :D

ill just say what everyone else will reccomend

RPW extractors and about 1-2kw gain

i think thats it, blake knows lots :?

The reason RPW extractors get used alot more than the pacemakers are they are tuned length extractors made to suit this engine - not just made to fit.

Also - they are bolt off bolt on - rather than with the pacemaker you have to cut and weld.

Also - Genie don't make extractors for the Magna - i have checked.

Manual

We stock both the Pacemakers and RPW's but i do reccomend RPW's simply due to design. RPW's come complete with everything you need to bolt up to the cat. Their flex pipes are tunes length and the system is top quality.

You are more likely to get a better result from RPW's system, however this may only be 2-3 extra kw over the pacemaker system but RPW's system will perform much better in the higher rpm

The Pacemaker System is still a massive improvement over stock. You might be able to find some of the older Pacemaker design (just the headers) for around $400 on ebay, however pacemaker have increased their price by about 35% so therefore RPW's is a better option.

Its up to your guys in the end to decide what you are more comfortable with... More details can be viewed in the AM Online Store.

*looks around for Widow*

:lol:

*looks around for Widow*

:lol:


With the amount of lies in this thread Widow isnt even going to bother :roll: but its nice you thought of me :lol:

Lies? Please widow pick one, i would love to hear :D

Lies? Please widow pick one, i would love to hear :D

please read my above post i just couldnt be bothered at all anymore

I can be, so bring them on, i would love to hear.

As to my knowledge im 100% honest in the information I give, if you have a problem with myself or any of the other Aussie Magna users "lies" then please feel free to take it up with them personally.

Don't make a statement like that and not back it up. Its unfair on users, myself and doesn't reflect well on yourself.

Remember Widow, we are all here to help the general magna population, not to snipe at everyone.

I can be, so bring them on, i would love to hear.

As to my knowledge im 100% honest in the information I give, if you have a problem with myself or any of the other Aussie Magna users "lies" then please feel free to take it up with them personally.

Don't make a statement like that and not back it up. Its unfair on users, myself and doesn't reflect well on yourself.

Remember Widow, we are all here to help the general magna population, not to snipe at everyone.

http://www.aussiemagna.com/forums/viewtopic.php?p=18555#18555

I dont see how the RPW ones can be any better - the pacemakers are only worse cos you have to weld them up but they are still tuned length you just dont get a new flex pipe with them.

i got mine installed last week (pacemakers) and have felt a definate improvement throughout the whole range but especially it has given me power in the flat spots i had before between 2000-3000 rpm.. i also have a pod and hi flow mitsu muff..
extremely happy with it now :)
recommend.... :badgrin:
not to mention its been done 1 million times before especially since pacemaker are huge company with big bucks r&d i dont see how they would be worse.

Are these extractors in question for the TE+ models?

Coz pacemaker doesnt make TR/TS extractors

Yes they are the TE on systems.

In the end it will allways come down to personal prefforance, either way they are good systems. But from a design point of view, I firmly believe that RPW's are better. But that doesn't mean to say that Pacemakers are rubbish, the certainly aren't.

Blake,
I will refer to comments that I made in another thread and say that while you may firmly believe that the RPW extractors are better you have not supported your claim. The way that I see it the only possible way to test would be to to back to back dyno runs using both types of extractors on the same car. No one has done this not even RPW because David says that he does't want to get into it due to the variation on engine dyno's. That is why people are sceptical.

Just on another note that tuned length is great but if it is the wrong length the it is worse than an interference design.

Cheers
Paul

Blake,
I will refer to comments that I made in another thread and say that while you may firmly believe that the RPW extractors are better you have not supported your claim. The way that I see it the only possible way to test would be to to back to back dyno runs using both types of extractors on the same car. No one has done this not even RPW because David says that he does't want to get into it due to the variation on engine dyno's. That is why people are sceptical.

Just on another note that tuned length is great but if it is the wrong length the it is worse than an interference design.

Cheers
Paul

hey give me both sets of extractors, and id bare the cost of the dyno runs :)

as long as i can keep the extractors that prove themselves 8)

:lol: :lol:

Hye GBM - for that to work you need to put one set on - drive around for a while - dyno it - and then take them off put the other ones on - drive around (for about a week) and then re-dyno - by this stage the dyno stats have changed - ie different temperatures, humidity etc, so readings arnt the same - it is hard to compare a product like this.

Manual

Couldnt you drive around with first set.... RPW bolt on ones. wear them in ...
then take them off ... Put on set two and then wear them in ... get Dyno of set two... and then put back on first set... adn get 2nd Dyno?
Haydn

I would be keen to see the dyno's of Pacemaker vs RPW's. I only make the statement based on the design priniciples of the system. Like you say scubasteve, there has never been a dyno comparison between the two, and until that we can never be 100% sure on which system will perform better.

Like i said before, it comes down to personal prefforance. Pacemakers are still a good option, many people have bought them of us and are very very happy with them.

Hey Blake...
You know that the RPW pic of the extractors is still the Pacemaker ones right?
Haydn

Thanks for bringing that to my attention haydn, let me fix that.

Would someone like to explain to me why there is a requirement to drive the car around for a week before you are able to dyno it? And before someone tires to tell me that it is so that the computer car learn the new A/F ratios I have only this to say. Under WOT conditions (Which is what is used during a dyno run) you are in the open loop section of the computer maps. For those of you that don't know what this means it basically means that the a/f ratio will not and cannot be changes as the oxy sensor is not used.

Cheers
Paul

(Not Scuba Steve)
:roll:

I think it has something to do with contaminents in teh extractors prior to bolting them on??

Sorry I meant things like fluids or dusts inside the extractors.

I am unsure of the exact reasons why - but apparently it takes time for these sort of mods to work with the car - apparently it is the same with mufflers as well!!

Now this is what I have been told by mechanics - i can't say from experience - but I work it on the same principle of a new car - you dyno it off the showroom floor - it will put out a power and dyno it 10K km's later and it should be slightly higher.

I think this was noted at the AutoSalon in Perth with the two ralliarts?? (form memory) the newer one with less km's had less power.

Manual

but I work it on the same principle of a new car - you dyno it off the showroom floor - it will put out a power and dyno it 10K km's later and it should be slightly higher.

I think this was noted at the AutoSalon in Perth with the two ralliarts?? (form memory) the newer one with less km's had less power.

Manual

Yeah, but this is because the whole engine and gearbox is new and needs to wear in properly.. the exhaust is just a bunch of pipes - it either flows or it doesnt..
fair enough it might take half an hour or so of driving for the computer to remap for higher flow or something but after that it should be no different - theres no mechanical or moving parts in it to wear in!

This is a perfect example of how things become excepted as fact by people who don't have the benefit of experience when they are told these things. This is why we need to try and expand the knowledge base and draw from the experience of others. The other thing that people need to be aware of is that not everyone is right all the time so that if you have a differing opinion to other people it is possible that you (or me :roll: ) amy be wrong. So on that note if I start talking out my Bum feel free to slap me around the head.

Cheers
Paul

So on that note if I start talking out my Bum feel free to slap me around the head.


I am happy to be corrected as well!!

Manual

Well I'll say that extractors and exhausts DO wear in because I didnt get definite improvements till about a week after the work was done.

That's going by my experience only though.

well at least we now have an experience POV!! I cant tell anything from my muffler change cos I had only had the car 2 days when I changed it !!!

And I was impressed with the power as it was!! (Was being the operatvie word - gimme more power!!!)

Manual

The only other explanation i can think of is it might take a week or so for them to become covered on the inside with that black carbony deposit stuff - which might fill in the rough edges and make it flow smoother or something but i think it would be barely noticable if at all...

when i had mine installed last week we disconnected the battery and i didnt notice a power improvement till the next day after driving for a while - im putting it down to the computer learning rather than 'running in' the extractors tho..

Hey guru - i was thinking that as well - except what then stops the extractors and exhaust being completly blocked off by carbon??

If this is the case - should the exhaust be changed or cleaned on occasion - and considering we don't i figured I had no idea what I was on about!
!
Manual

When I had my muffler fitted, they reckoned it would take a few days before I would "notice" any difference. They couldn't give me a reason why though when I asked.

Hey guru - i was thinking that as well - except what then stops the extractors and exhaust being completly blocked off by carbon??

If this is the case - should the exhaust be changed or cleaned on occasion - and considering we don't i figured I had no idea what I was on about!
!
Manual

well you have a lot of gas and fumes coming out of that pipe at sometimes a very fast speed - so that would blow out anything that got stuck in there anyway - maybe it only sticks to metal and not to itself or something - exhausts dont need cleaning or changed.. or maybe the exhaust gasses blowing through the pipe blow out anything that doesnt stick to the very outside of the pipe..

I would be keen to see the dyno's of Pacemaker vs RPW's. I only make the statement based on the design priniciples of the system. Like you say scubasteve, there has never been a dyno comparison between the two, and until that we can never be 100% sure on which system will perform better.

Like i said before, it comes down to personal prefforance. Pacemakers are still a good option, many people have bought them of us and are very very happy with them.

Was'nt me :-s :)

spending $400+ on extractors only get you 1-2kw extra in power? what abt putting on a sports muffler? how much extra does that give you? the shop who put on the lukey for me told me abt 8kw but i was like 'yea right'. anyway i was more interested in the exhaust note than the power.
do the extractors and muffler improve fuel economy?

Alf77, I've got a 99'TH sports I had the exhaust changed to a 2.5 inch one, made the car sound a sh*t load louder and meaner, and made a huge increase in lower-mid range, and in my opinion was worth every cent. I've since thrown in a K&N pod filter from RPW and hacked up my old air snorkel box so that it atleast sucks in cold air when the car is moving, but I don't have any heat shielding around the filter :( , haven't found an off the shelf solution yet that doesn't involve taking out my driving lights. The air filter made another big difference, especially in mid-top end, I was amazed at what a difference it made! I have taken off against other TH Magna's - who were egging me onto race and blew them away, so the mods must make some difference!

Now with the air con turned off, at a nice 110kph cruze to the gold coast along the pacific highway in brissie, after awhile the average fuel consumption on the trip computer was reading 8.8litres / 100km which is fairly good.

Extractors are on my todo list, but I am suprised to hear they only make a few kws difference :(

Extractors are on my todo list, but I am suprised to hear they only make a few kws difference :(

I have a 99 TH Sports with muff pod and extractors and im gonna say that you can definately feel the difference after putting on the extractors...
id recommend them anyday now...

Extractors alone wont make a huge improvement.

Extractors PLUS the cat back exhaust (and hi flow cat if u want) will make the improvement

Remember 1-2 kW out of JUST extractors is not bad.

With the stock exhaust there is still a bottleneck (on the TR/TS) and on the TE+ (not including sports/vrx) the bottleneck is the muffler.

Change ALL of these and THEN you will get the improvement.

Don't expect miracles!

I'll let u all know what the difference is like,i'm putting my extractors on saturday nite!!!

Not trying to step on toes but I got this from MMAL today.

[quote:1ea7b17ed8]We are responding to your email regarding exhaust system on TF Magna Sedan.

The exhaust pipe is 60.5mm diameter.

Thankyou for your enquiry,
[/quote:1ea7b17ed8]

60.5mm is close to 2.4 inch. It's close enough to 2.5. I think I'll stay with the existing piping and use the money on the muffler and other stuff.